A 60-year-old Stamford man is charged with threatening to blow up a downtown bank, angry over the performance of his investment accounts.

Police say Stephen Montalvo was charged Tuesday with committing an act of terrorism and first-degree threatening.

Police say Montalvo entered a local branch of a well-known national bank, then told employees he would blow it up and kill everyone inside because he was unhappy with his investment accounts.

Police would not name the bank, citing the ongoing investigation. The FBI's counter-terrorism task force is involved in the case, a police spokesman said.

Montalvo was held on $150,000 bond for arraignment Wednesday in Stamford Superior Court. Information was not immediately available on whether he had an attorney.

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